Pane wiper



F. o. DU-rroN, JR

"Nom

PANE WIPER Filed Sept. 20, 1925 QM Y.

" Arron/vif" I, lmlnm... will-.

Patented Nov. l, IE7.

FREDERICK o. BUTTON, an., or Yonxnns. NEW Yoan.

Pana En..

Application led. September 20,1923. i Serilal'o. 663,751.

"The invention has to do with panecleaners, such as wind-shield wipers for automobiles. The purpose, generally stated,

`is to provide a` device having a novel and w part hereof;

Fig. 1 is an elevation looking at the inner side of a windshield embodying the invention, an intermediate part of thewindshield being broken out; y

Fig. 2 is an end view;

Fig. 3 Iis La vertical, transverse section;

Fig. `4L is a horizontal sectionl through the motor; and

Fig.- 5 is an enlarged cross-section of the 2Q wiper member.

The windshield supports are marked 30, and the frame 2 of the pane 1 is hung in usual pivot fastenings 31 on these supports. The pane 1 is recessed at one of the upper corners, 'and the casing 11 of an electric motor 10 is fitted into this recess, the top and side members of thetrame 2 being joined to or integral with the top and bottom sections of the motor case.` The shaft ofthe motor is geared at 13 to the end of a rotary shaft 7 that extends lengthwise within the upper member l5 of the frame of the windshield pane, this shaft being formed with a crossing thread which is engaged by a follower 16 vswiveled in a traveler 17, which as the shaft is. rotated is caused to move back and forth along thd shaft in la known manner. A A. stud 18 fixed in the traveler projects through a longitudinal guide slot 6 in the frame member 5, and carries on the outside a block 19 in which is set the endl of a wiper rod 20.l Said rod extends downward at the inner side of the pane, and carries the wiper proper 21.

The construction and operation of l,the wiper proper also presents advantages; and it will be seen to comprise inner and outer curved or incompletely circular shells or stampings 22, 23, with diverging wiper lips 24, 25 held between their diverging channels.-

rIhe wiper lips, of rubberlor other suitable "material, may be either in one piece with each other, as shown, or not. The channels are slightly squeezed to hold the lips, and the inner shell is pinched at 26 into the round rod to secure it thereto. The rod lies longitudinally in the embrace of the inner shell as shown in Fig. 3..

As the wiper reciprocates transversely to itself, each of the similar, diverging, rubber hps 24, 25 in 'line contact with the pane, alternately, operates by a chiseling or plowing action to give a primary cleaning tothe lass, while the other, at the same time, acts y aI dragging lor wiping eect to give a secondary and final cleaning, the rles of the v two lips being exchanged at each reversal of movement. The support afforded to the lips throughouttheir length, inside and outl extensions of the inner ,and outer shells insures that-,the lips will side, by t e oblique preserve their positions and perform their functions vatfalltimes, and that each lipv will exert uniform pressure throughout its length inl the chiseling and wiping` eects. The edges of the lips themselves are of chiselform, as shown. l

What I claim as new is: a p l 1. In a windshield, a pane having a corner recess, a frame holding the pane, a motor casing incorporated within a corner of the pane-frame and fitting into the recess in the ane, the top member of the paneframe in hollow and slotted, a screw in said mem er having crossing threads and geared to the motor, a reciprocating traveler coacting with said screw, and a Wiper connected through said slot with the traveler.

2. In a pane wiper, a rod, inner and outer vshells providing a air of channels, the rod lying in the inner s iell and secured thereto,

and wiper lips held between the shells and projectlng from the channc'els.

3. In a pane wiper, a rod, inner and outer shells lproviding a pair of channels in di verging relation, the rod lying in the inner shell and secured thereto, and projecting wiper lips held in diverging relation between` the shells. f

FREDERICK O. BUTTON, JR. 

